CN1538637A - Dynamic configuration of radio link protocol in communication system - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1621—Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers, e.g. of sequence numbers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1642—Formats specially adapted for sequence numbers
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1685—Details of the supervisory signal the supervisory signal being transmitted in response to a specific request, e.g. to a polling signal
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- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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Abstract
A method and apparatus for dynamically configuring parameters of the radio link protocol layer in a telecommunications system. The method and apparatus allows dynamic configuration of the radio link protocol layer in order to optimize parameters for use with a particular data service. In an embodiment of the invention, radio link protocol control frames used for connection initialization include RLP parameter data. The RLP parameter data is exchanged between two communicating transceiving devices during connection initialization, and is used in each transceiving device to configure subsequently transmitted RLP data frames and transmit retransmission requests accordingly.
Description
The present invention relates to communication system, relate in particular to the method and apparatus that is used for dynamically arranging communication system radio link protocol (RLP).
The type of main cellular system comprises that those are according to the whole world service of moving (GSM) standard, standard TIA/EIA/IS-95 about compatibility between the mobile radio station-base station of dual mode wideband spread spectrum cellular, the standard TIA/EIA/IS-136 of compatibility between mobile radio station-base station, and mock standard (AMPS/TACS) TIA/EIA 553 and the operation carried out.Other main cellular system comprises those according to the IS-95 based on ANSI-J-STD-008 1.8-2.0GHz standard, the operation in PCS Personal Communications System (PCS) frequency band, and perhaps those are according to the operation based on PCS1900 (1900Mhz frequency range) standard.
At present, the standard entity of each main cellular system all is to finish data, services in its digital cellular specifications.The packet service regulation that is used for GSM is established, among the compatible mutually packet service regulation of IS-95 and IS-136 standard is being prepared.The example of another data, services is the data, services scheme standard TIA/EIAIS-99 that is applied to wide-band spread spectrum Digital Cellular System (IS-99).IS-99 has defined a kind of connection that is used for based on network IS-99-A, and described connection is based on packet service.The IS-99 system provides a kind of standard that is used for non-synchronous data service (service plan 4) and digit groups-3 fax services (service plan 5).
In the system based on IS-99, radio link protocol (RLP) is used to provide eight hyte data flow services on the forward direction of IS-95-A and reverse signal passage.Each eight hyte comprises 8 bit digital data.The variable-length data package of peer-peer protocol layer is carried in these eight hyte data flow services.RLP is divided into the packet of peer-peer protocol the IS-95-A signalling channel frame that is used to transmit.Peer-peer protocol packet and IS-95-A frame are not contacted directly.A big packet can comprise the scope of several IS-95-A signalling channel frames, and perhaps a signalling channel frame can comprise the whole of several point-to-point packets or wherein a part of.PLR does not consider the formation of higher level signalling channel frame, but can handle undistinguishable eight hyte data flow, according to eight hytes of order transmission of layer reception from point to points.Data can be used as basic service and transmit in signalling channel, perhaps, for example, with voice, as second business.Data also can be transmitted in the signal subspace passage.IS-95 multiplexing scheme 1, for basic service, can be at full speed, Half Speed and eight speed are employed, for second business, then can 1 times of speed, 7/8 speed, 3/4 speed, and 1/2 speed is employed.
RLP utilizes the transmission of RLP control frame control data, utilizes the RLP Frame, in RLP layer transmission data.
Definition RLP control frame and Frame can make each rlp frame all comprise one 8 bit sequence field (SEQ).The SEQ field of each RLP Frame all comprises the sequence number of its particular data frame.This sequence number is used to discern the Frame of each reception, and judges the Frame that is not received.The SEQ field of RLP control frame is not the sequence number that is used for representing control frame, but comprises the sequence number of next Frame, and this just makes the Frame that can fast detecting be wiped free of.
Except that the SEQ field, each RLP Frame also comprises many data bit, can reach the maximum of the data bit that each frame allows.The maximum of the data bit that is allowed in the Frame depends on the IS-95 multiplex sub-channel that is adopted.For example, for the basic service of signalling channel, adopt IS-95 multiplexing scheme 1 at full speed, the maximum of the data bit of permission is 152, and for the basic service of signalling channel, Half Speed adopts the multiplexing scheme 2 of IS-95, and the maximum of the data bit of permission is 64.When in frame, being transmitted, need utilize filler that data field is filled into 152 less than peaked data bit.Each RLP Frame also comprises rlp frame type (CTL) field and a data length (LEN) field.Data length field is represented the length of data in eight hyte frames.For unsegmented Frame, the CTL frame accounts for 1, and is changed to 0.For the Frame of segmentation, the CTL frame comprises 4, and can be configured to represent whether the data bit in the frame comprises not eight hytes of first LEN of segmented data frame, eight hytes of next LEN, or eight hytes of last LEN.
The RLP control frame can be as denying (NAK) RLP control frame.(NAK) RLP control frame comprises one 4 frame type (CTL) field, one 4 length (LEN) field, one 8 FIRST field, one 8 LAST field, a reverse direction field (RSVD), a FCS field (FCS) and filler.A frame type field is configured to deny the RLP control frame of (NAK), can be used to ask the repeating transmission of a certain particular data frame, perhaps, and the repeating transmission of a certain particular sequence of Frame.For example, a mobile radio station of wishing to receive the Frame with particular sequence number can send a NAK control frame to the base station, if this mobile radio station has been concluded admission control.Specific Frame in the Frame that FIRST in the RLP NAK control frame and LAST field are used for representing to be requested to retransmit, or sequence (expression begins to the scope the end of the sequence number of representing with the LAST field from the sequence number represented with the FIRST field).In IS-99, the request number of times of data frame re-transmission is a fixed number, can retransmit the initialization of timer control re-send request may by NAK.When rlp frame is carried as fundamental sum second business, retransmit timer and just be used as frame counter.When rlp frame is carried as basic or second business, retransmit timer and be used as the timer that the duration equals predetermined value Tlm, Tlm is defined in the appendix D of IS-95-A.To the retransmission counter of Frame, when the NAK control frame of this data frame re-transmission of request sends first, begun to start.
When NAK retransmits timer then, and during Frame no show receiver, receiver just sends second NAK control frame, this Frame of request repeat.This NAK control frame is launched twice.NAK repeating transmission timer to this Frame will be restarted.When the NAK timer then for the second time, and during Frame no show receiver, receiver just sends the 3rd NAK control frame, this Frame of request repeat.As retransmitting the timer second time of result then, each NAK control frame will be launched three times.
When the 3rd NAK control frame of transmission, the fail timer of receiver is activated.The operation of NAK fail timer, process are then retransmitted timer with NAK.When the NAK fail timer then, and during Frame no show receiver, NAK just is cancelled, and no longer transmits the NAK control frame of this Frame.
For some particular data frame that is not received, the IS-99 scheme produces maximum 3 times re-send request may, is issued comprising maximum 6 NAK RLP control frames.
Along with the development of cellular communication system, various high-speed datas (HSD) service plan is implemented in the different cellular systems standards.For example, considering several HSD schemes of in the IS-95-A standard, implementing.These HSD schemes can comprise based on IS-95-A, have the system of data transmission rate up to the 78.8kbps capacity.In IS-95-A, adopt any described scheme, all can increase the service supported and the scope of application.For the system based on IS-99, the service that system supported and the increase of application numbers will require system's support to have different bandwidth, time delay sensitivity, and the data, services of quality of service requirement (QOS).
Different bandwidth, time delay sensitivity and quality of service requirement will require the different error rate (BER) and time delay.(fixedly the retransmission process of frame head and fix N AK) among the IS-99, for a certain definite service that must support, may not be best the setting for example.For example, may be that a kind of low QOS requires the service of (allowing high bit-error BER), in having the system of predetermined number of retransmissions, when for acceptable service is provided, and really need be according to the Frame of pre-determined number retransmits lost the time, can be because the retransmission process of NAK experience long time delay.Adopt among the embodiment that fixedly packet of frame head is served at another, the situation among the IS-99 for example, when the wide bandwidth of service request, and the mass data frame sequence can take place not optimized when being used as high speed data transfer.This service can be adopted the long data sequence that has more than x Frame, and wherein x is the maximum number of representing with the fixing full SEQ field of frame head.In this case, the counting in the SEQ field may be restarted before the long data EOS.The counting of restarting in the sequence field just requires the process that transmit and receive data more complicated than the situation of each the frame sequential label in the data sequence.In addition, if data, services adopts the short data sequence that has less than the peaked Frame of being represented by the SEQ field, can in the time can being used for transmitting data, not be utilized because of the position that keeps for the SEQ field in each Frame, and non-optimized situation occur.
First purpose of the present invention provides a kind of effective ways and equipment of transfer of data of the communication network that is used for overcoming above-mentioned and other problem.
Another object of the present invention provides in a kind of data, services of the particular type in the employing wireless interlinkage agreement, dynamically arranges the method and apparatus of radio link protocol.
Another object of the present invention provides a kind of method and apparatus that dynamically arranges the figure place that the sequence number field comprises in the radio link protocol frame.
Another object of the present invention is when receiver does not receive the radio link protocol frame of expectation, dynamically arranges the method and apparatus that is used to control the retransmission count value of denying number of times that this receiver sends.
By method and apparatus according to an embodiment of the invention, overcome above-mentioned and other problem, realize purpose of the present invention.
The invention provides a kind of method and apparatus that dynamically arranges radio link protocol layer parameter in the communication system.For the parameter that a certain specific data services is adopted realizes optimization, described method and apparatus allows to dynamically arrange the radio link protocol layer.The parameter of radio link protocol can comprise the parameter that is used to specify the setting of radio link protocol frame, and/or other control radio link protocol transmission parameters.Described method and apparatus utilizes a setting up procedure of finishing before the data, services initialization between two twoway radios.This setting also can be performed in the process of carrying out data, services, with the parameter of the radio link protocol layer that is used for resetting.
In described setting up procedure, parameter can be consistent with the radio link protocol on each direction in the wireless link between two twoway radios.
With respect to adopting the fixedly communication system of frame head, with the system that must huge profit in transmission course requires more processing procedure with not enough field, and the system that wastes obtainable potential bandwidth because can not utilize long field fully, the invention provides an advantage.The present invention can also prevent to be greater than or less than time delay or the service quality decline that the desired value of a certain specific data services causes owing to the repeating transmission number of times of the Frame that does not receive.
In an embodiment of the present invention, be used for being provided with the radio link protocol control frame that the data, services link is set up between two twoway radios, comprise a sequence size field that is used to represent bit length that requires by frame sequence number (SEQ) field that is applied in continuous radio link protocol Frame and the radio link protocol control frame.The wireless link that is used to link foundation is assisted adopted control frame, can also comprise that one is illustrated in the data, services, to sending, but the retransmission field of the re-send request may number that particular data frame allowed that is not received.The wireless link control frame is applied in the initialization or the reseting procedure of used link.For the parameter of radio link protocol is set, the re-send request may number on each direction in the size of sequence number field and the link for example, the wireless link control frame can exchange between twoway radio.
For the radio link protocol parameter is set in initialization procedure, perhaps for the radio link protocol parameter that resets in carrying out the data service process, first twoway radio in two twoway radios sends first RLP control frame to second twoway radio.First RLP control frame comprises a sequence size field, a re-send request may field, and this frame of expression comprises the field of sequence size field and retransmission field.First RLP control frame to the indication of second twoway radio it will be to second twoway radio transmission frame structure, second twoway radio comprises (SEQ) field that is used for specifying the figure place of sequence size field in first RLP control frame.First RLP control frame is also in the re-send request may field, to second twoway radio indication, for in link, transmitting by first twoway radio to the second twoway radio, and the Frame that is not received, second maximum retransmission request number that the radio send-receive device is allowed.Second twoway radio receives first RLP control frame, and carry out self and be provided with, to be received in by the data in the link of first twoway radio to the second twoway radio, and, send re-send request may about the Frame that is not received in the link according to the information in first RLP control frame that receives.
Then, second twoway radio sends second RLP control frame to first twoway radio.Second RLP control frame also comprises a sequence size field, a retransmission field, and this frame of expression comprises the field of sequence size field and retransmission field.Comprise also in second RLP control frame that one receives the mark that first RLP control frame sends second frame structure for response.Second RLP control frame will be launched the frame structure with sequence number (SEQ) field that comprises the figure place of being represented by the sequence size field to second twoway radio of first twoway radio indication.Second RLP control frame also represented to first twoway radio in retransmission field, for in the link of first twoway radio, transmitting by second twoway radio, and the Frame that is not received, the maximum retransmission request number that first twoway radio allowed.After receiving second RLP control frame, first twoway radio carries out self and is provided with, to be received in by the data of second twoway radio in the link of first twoway radio, and, send re-send request may for the Frame that is not received in the link according to the information in second RLP control frame.Then, first twoway radio sends a control frame to second twoway radio and determines.Then, first just correspondingly transmits and receives data and control frame with second twoway radio.
Foregoing of the present invention and other character by following detailed description of the present invention, and are understood with accompanying drawing, become more clear, wherein:
Fig. 1 is a kind of block diagram that is suitable for realizing cellular terminal equipment of the present invention;
Fig. 2 has described the terminal among the Fig. 1 that links to each other with the cdma cellular net;
Fig. 3 A, 3B and 3C are a kind of according to mobile radio station and the base station of being applied to of the present invention, communication linkage are provided with the graphic representation of radio link protocol (RLP) the control frame structure of RLP between mobile radio station and base station;
Fig. 4 A, 4B, 4C are the flow charts that process is set according to description of the invention radio link protocol (RLP).
Referring now to Fig. 1 and Fig. 2, wherein described and be suitable for realizing wireless user terminal of the present invention or mobile radio station (MS) 10 and Cellular Networks 32.Mobile radio station 10 comprises the antenna 12 that is used for to basic point or base station (BS) 30 transmitting and receiving signals.(BS) the 30th, comprise the part of the Cellular Networks 32 of mobile switching centre (MSC) 34.When MS10 was used in conversation, MSC34 provided the connection between a kind of and the landline backbone.
MS10 comprises modulator (MOD) 14A, transmitter 14, and receiver 16, demodulator (DEMOD) 16A, and provide signal and from the controller 18 of demodulator 16A received signal to modulator 14A respectively.According to the air interface standard of practical cellular system, these signals can be included in the signal message that transmits between MS10 and the BS30, and voice, data and/or packet data.
Controller 18 can comprise the transducer of digital signal processor device, micro processor device, various analogs to digital, the transducer of digital to analogy and other support circuit.The control of mobile radio station and signal processing function are configured between them according to this equipment function separately.MS10 also comprises a user interface, and this user interface comprises earphone commonly used or loud speaker 17, microphone 19 commonly used, and display 20 and typically be the user input device of keyboard 22, all devices all is connected with controller 18.Keyboard 22 comprises that (these other keys 22b can comprise, for example sends key, various menu rolling keys and soft key and power supply PWR key for #, *) 22a, and other key 22b that is used for operating mobile radio station 10 for conventional numerical key (0-9) and relative keys.Mobile radio station 10 can also be included as operation mobile radio station and essential a large amount of circuit provide the battery 26 of energy.
Mobile radio station 10 also comprise by memory 24 set expression be used for being kept in the course of work of mobile radio station, a plurality of constants that controller 18 is used and a large amount of memories of variable.For example, memory 24 can be stored the parameter of a plurality of cellular systems and the value of digital module (NAM).The operation sequence of the operation of control controller 18 also is stored in the memory 24 and (normally is read-only memory equipment).Memory 24 can also or receive storage data in back before emission.Memory 24 also comprises the routine according to described embodiment of the present invention, realization radio link protocol method to set up.
Mobile radio station 10 can also be as the data terminal of emission or reception data.Therefore, in this case, MS10 can link to each other with portable computer or facsimile machine by suitable data port (DP) 28.
BS30 comprises that also permission and MS10 carry out the necessary transmitter and receiver of handshaking.Can be installed in controller, processor and relevant memory on BS30 or the MSC40,, provide control BS30 and MSC40 according to described embodiment of the present invention, and the routine of realizing the method and apparatus that radio link protocol is provided with.
In embodiments of the invention, MS10 and network 32 employings are based on direct sequence, code division multiple access (DS-CDMA) system works of IS-95A system standard.According to the IS-95A standard, network can be operated in the 800MHz frequency range, perhaps according to the IS-95 based on the ANSI-J-STD-008 standard, is operated in the 1.8-2.0GHz frequency range.Network can provide the service plan characteristic based on the IS-99 standard, can also be adopted as the high speed data technology based on cdma system suggestion, so that the transfer of data than the higher rate that is provided by IS-95A and IS-99 standard at present to be provided.
For example, on forward link, adopt a more than Walsh passage, belong to the independent data that same user launches, high-speed data is provided by transmission simultaneously.In backward chaining, adopt multiplexer channel to improve data rate.In this method, continuous data is input in the transmitter/modulator with the speed that is higher than the master data transmission rate.Equal time period of the duration 20ms of IS-95 frame emission through a duration, continuous data is received, and is separated into many group input data.Then, each group in many group input data adopts system channel coding and interleaved plan in each subchannel in a plurality of subchannels, produce the processed data of many groups.By many groups in the multiplexing subchannel processed data, produce the continuous data stream of output.Produce continuous output stream, just can produce the primary reception continuous data that is included in the continuous output stream with the speed of input data.
According to the present invention, IS-99 RLP Frame and control frame are corrected, so that this frame structure can be applied to when the data, services initialization or the RLP setting up procedure when resetting.With reference now to Fig. 3 A,, 3B and 3C have wherein illustrated RLP control frame 300 respectively, the structure of not segmentation RLP Frame 320, and segmentation RLP Frame 340, and according to the present invention, described frame structure is applied in mobile radio station and the base station, thereby realizes dynamic RLP agreement.RLP control frame 300 comprises rlp frame type (CTL) field 302, sequence number (SEQ) field 304,8 hyte length (LEN) field 306 that keeps, sequence size/first sequence number (SES/FIRST) field 308, number of retransmission/final nucleotide sequence number (RETN/LAST) field 310, keep (RSVD) field 312, FCS (FCS) field 314, and filler 316.Unsegmented RLP Frame 320 comprises CTL field 322, SEQ field 324, len field 326, RSVD field 328, data DATA field 330, and filler 332.The RLP Frame 340 of segmentation comprises CTL field 342, SEQ field 344, len field 346, RSVD field 348, DATA field 350, and filler 352.
In order to realize embodiment of the present invention, according to the structure of IS-99, RLP control frame and data frame structure are corrected, like this, compare with IS-99, CTL and SEQ field are changed in RLP control and the Frame, and SEQ field 324 and 344 is corrected for variable-length in the RLP Frame as a result.In the RLP control frame, FIRST and LAST field are corrected, to be used for providing SES and RETN function respectively.In the RLP of not segmentation and segmentation Frame 320 and 340, RSVD field 328 and 348 is used to illustrate the variable-length of SEQ field respectively.
The type of CTL field 302 expression RLP control frames.Whether CTL field 302 expression RLP control frames are to deny (NAK) control frame, and the SYNC control frame is replied (ACK) control frame, perhaps synchronously/reply (SYNC/ACK) control frame.The length of RSVD field in 8 hytes of len field 306 expressions, FCS field 314 provides a kind of FCS that carries out error detection on control frame 300.For unsegmented Frame 320, CTL field 332 can be 1, and can be set to 0.For the Frame 340 of segmentation, the CTL field list shows whether Frame 340 comprises the first of segment data, and is last, perhaps interlude.Len field 326 and 346 is represented the length of data DATA field 330 and 340 respectively.
In the memory relevant, comprise being saved V1 (retn), V2 (ses), and the value of V2 (retn) into V1 (ses) with controller among each and MS10 and the BS30.V1 (ses) is when rlp frame transmits on forward connection, with the value of the size of the SEQ field 304,324 of bit representation or 344, V1 (retn) allows in oppositely connecting, for what be not received, the maximum number of the re-send request may of the Frame of transmission in forward connects.V2 (ses) is oppositely connecting when transmitting when rlp frame, the value of SEQ field 304,324 or 344 size, and V2 (retn) allows in forward connection, for the maximum number of the re-send request may of the Frame of transmission in oppositely connecting that is not received.V1 (ses) and V1 (retn) are determined in BS30, and V2 (ses) and V2 (retn) are determined in MS10.These values can be according to the information of used data, services, determine by the controller among MS10 and the BS30, for example, can be based on data rate, the number of frame, service quality, or the like, perhaps can be in the terminal of data connection, to MS10 and the suitable value of BS30 input, for example, the facsimile machine from being connected with MS10.Then, these values are exchanged in radio link protocol is provided with, so that each MS10 has forward direction and the protocol information that oppositely is connected with BS30.Controller among MS10 and the BS30 is set up according to these values, to be used for format and emission rlp frame, emission re-send request may, and reception rlp frame.
Referring now to Fig. 4, wherein be the flow chart of a description according to radio link protocol setting up procedure of the present invention.In embodiments of the invention, process shown in Figure 4 can be used for realizing the data, services initialization between MS10 shown in Figure 2 and network 32.Process shown in Figure 4 can also be used to after data, services is initialised, the RLP protocol parameter of reseting data service.Although in mobile radio station starts the context of synchronizing process, be described, should be realized that described process is symmetrical, and base station 30 also can the described process of initialization.
Described process started from for the 402nd step.Preferably, setting is done, and connects in the initialization procedure so that setting up procedure is included in.The information that is exchanged realizes the initialization that connects and the dual-use function of dynamic RLP is set.In the 404th step, according to the present invention, the RLP setting up procedure begins to use modified R LP control frame.SYNC control frame (CTL=1101) among the MS10 is formatted, and wherein SES/FIRST field 308 is changed to x1, and RETN/LAST field 310 is changed to Y1.In the 406th step, MS10 is transferred to BS30 to the SYNC control frame.In the 408th step, whether the SES/FIRST field 308 in BS30 in the judgement SYNC control frame is changed to 0, and promptly whether the value of x1 is 0.If SES/FIRST field 308 is to be changed to 0, then process forwarded for the 412nd step to.In the 412nd step, V1 (ses) is configured to bit representation, is applied in the default value of the size of the sequence of SEQ field 322/344 in the RLP Frame in the reverse connection.In embodiments of the invention, this default value can be set to 8.Process forwarded for the 416th step to then.
But, be not changed to 0 if adjudicate SES/FIRST field 308 in the 408th step, then process forwarded for the 410th step to.In the 410th step, whether the value of x1 is effective value in the judgement SES/FIRST field 308 in BS30.Be considered to effective value, the value of SES/FIRST field 308 must be between preset range 8 to 12.If the value of SES/FIRST field 308 is not an effective value, then process forwards the program block that is labeled as " A " to.In this case, the entity of detection invalid condition is restarted initialization procedure.That is, by embodiment, if base station 30 detects Invalid parameter at program block 410, a SYNC frame is just sent to mobile radio station 10 in base station 30.Because mobile radio station 10 requires the SYN/ACK frame, therefore, receive the SYNC frame and show to mobile radio station 10 exactly, one or more parameters that can not adopt are found in base station 30, and respond with the preferred parameter in base station.
But if the value of SES/FIRST field 308 is effective, then process forwarded for the 414th step to.In the 414th step, V1 in BS30 (SES) is changed to x1.Now, BS30 is configured to utilize the X1 conduct to receive in oppositely connecting, from the size of SEQ field 322/344 bit sequence in the RLP Frame 320/340 of MS10.
Then, in the 416th step, whether the RETN/LAST field 310 in BS30 in the judgement RLP control frame 300 is set to 0, and promptly whether Y1 is assigned 0.If RETN/LAST field 310 is changed to 0, then process forwarded for the 420th step to.In the 420th step, Y1 (retn) is configured to the RLP Frame that is not received from MS10 for transmission in oppositely connecting, the default value of the re-send request may maximum number that BS30 allowed.In embodiments of the invention, this default value can be changed to 0.Then process forwarded for the 424th step to.
But if in the 416th step, adjudicate RETN/LAST field 310 and be not set to 0, then process forwarded for the 418th step to.In the 418th step, whether the value of the Y1 in BS30 in the judgement RETN/LAST field 310 is effective value.Be considered to effective value, the value in the RETN/LAST field 310 should be positioned within the preset range.In embodiments of the invention, preset range can be 0 to 3.If the value of RETN/LAST field 310 is not an effective value, then process forwards program block A to, and as mentioned above, synchronizing process is restarted again.But if the value of RETN/LAST field 310 is effective values, then process forwarded for the 422nd step to.In the 422nd step, V1 (retn) is changed to Y1 in BS30.Now, BS30 is configured to utilize Y1 as for not being received in oppositely connecting, from the RLP Frame of MS10, and the maximum number of the permission re-send request may that BS30 sends.
Then, the 424th step of being moved in the base station, (CTL=1111) is formatted for the SYNC/ACK control frame, and wherein the value of SES/FIRST field 308 is configured to x2, and the value of RETN/LAST field 310 is changed to Y2.In the 416th step, BS30 sends the SYNC/ACK control frame to MS10.Then, in the 428th step, whether SES/FIRST field 308 is set to 0 in the judgement SYNC/ACK control frame in MS10, and promptly whether x2 is assigned 0.If SES/FIRST field 308 is changed to 0, then process forwarded for the 432nd step to.In the 432nd step, V2 (ses) is configured to bit representation, the default value of the sequence size of SEQ field 322/344 in the RLP Frame in forward connection.In embodiments of the invention, this default value can be set to 8.Process forwarded for the 436th step to then.
But, be not changed to 0 if adjudicate SES/FIRST field 308 in the 428th step, then process forwarded for the 430th step to.In the 430th step, whether the value of the x2 in MS10 in the judgement SES/FIRST field 308 is effective value.Be considered to effective value, the value of SES/FIRST field 308 must be within preset range.In embodiments of the invention, for V1 (ses), preset range can be 8 to 12.If the value of SES/FIRST field 308 is not an effective value, then process forwards program block B (in this case, with the 402nd step) to, and wherein MS10 sends a SYNC frame to BS30, thereby restarts synchronizing process.But if the value of SES/FIRST field 308 is effective values, then process forwarded for the 434th step to.In the 434th step, V2 (ses) is configured to x2 in MS10.Now, MS10 is configured to utilize x2 as the size from SEQ field 322/344 sequence of usefulness bit representation in the RLP Frame 320/340 of BS30 that receives in forward connection.
Then, in the 436th step, whether RETN/LAST field 310 is changed to 0 in the judgement SYNC/ACK control frame in MS10, that is, whether Y2 is assigned 0.If RETN/LAST field 310 is changed to 0, then process forwarded for the 440th step to.In the 440th step, V2 (reth) is configured to for not being received in forward connection, from the RLP Frame of BS30, the default value of the maximum number of the re-send request may that MS10 allowed.In embodiments of the invention, this default value can be made as 0.Process forwarded for the 444th step to then.
But if in 436 steps, adjudicate RETN/LAST field 310 and be not changed to 0, then process forwarded for the 438th step to.In the 438th step, whether the Y2 value in MS10 in the judgement RETN/LAST field 310 is effective value.Be considered to effective value, the value of RETN/LAST field 310 must be in preset range.In embodiments of the invention, for V2 (retn), preset range can be 0 to 3.If the value in the RETN/LAST field 310 is invalid, then process forwards program block B to, as mentioned above.But if the value in the RETN/LAST field 310 is an effective value, then process forwarded for the 442nd step to.In the 442nd step, V2 (retn) is set to Y2 in MS10.Now, MS10 is set to and utilizes Y2 as for not being received in forward connection, from the RLP Frame of BS30, and the maximum number of the permission re-send request may that MS10 sends.
Then, in the 444th step, (CTL=1101) is formatted for the ACK control frame, and wherein the value of SES/FIRST field 308 is set to x1, and the value of RETN/LAST field 310 is set to Y1.In the 446th step, MS10 sends the ACK control frame to BS30.The ACK control frame is as from MS10 to BS30, the affirmation that the control frame that is used to be provided with RLP has been exchanged.Through 448 steps, whether the SES/FIRST field 308 in BS30 in the judgement ACK control frame 300 is changed to x1, and whether RETN/LAST field 310 is changed to Y1.If SES/FIRST field 308 is changed to x1, and RETN/LAST field 310 is changed to Y1, and then this setting is identified and process forwarded for the 450th step to.In the 450th step, setting up procedure finishes, and the data transmission procedure between MS10 and the BS30 begins to carry out.The rlp frame in oppositely connecting by MS10 sends is received by BS30 according to x1, and according to Y1, sends re-send request may to described frame by BS30.The rlp frame in forward connection by BS30 sends is received by MS10 according to x2, and according to Y2, sends re-send request may to described frame by MS10.
Although the programmable parameter that top basis is determined (that is, i.e. sequence number field and number of retransmission) is described, the present invention can comprise other programmable parameter.
For example, the number of crc check position can be programmable, and can utilize above-mentioned signal transmission that it is determined.
Therefore, although the present invention according to its preferred embodiment, specifically shown and described, be familiar with present technique field personnel and should be understood that variation on the form that can produce or the details, and unlikely departing from
The field of the invention and spirit.
Claims (16)
1. a utilization has the host-host protocol of a variable element at least, the method that between first transceiver and second transceiver, communicates, and described method comprises step:
Send first control information from first transceiver to second transceiver, described first control information comprises first repeating transmission value, described first repeating transmission value has stipulated not have at described second transceiver for sending from described first transceiver the Frame of reception, the maximum number of described second re-send request may that transceiver allowed;
Send second control information from described second transceiver to first transceiver, described second control information comprises a repeating transmission value, this repeating transmission value has stipulated not have at described first twoway radio for sending from described second transceiver the Frame of reception, the maximum number of the re-send request may that described first twoway radio allowed;
Store this first control information and store second control information at second transceiver at first transceiver; And
Subsequently, send first group of a plurality of Frame from first transceiver to second transceiver;
Receive at least one receiving data frames of described first group of a plurality of Frame at described second transceiver;
At least one that detects described first group of a plurality of Frame at described second transceiver be receiving data frames not;
Determine described at least one receiving data frames not, whether sent re-send request may less than the described first repeating transmission value for described first group of a plurality of Frame;
And, the sure decision of response in described determining step,
Send first re-send request may from described second transceiver to described first transceiver.
2. the method for claim 1, wherein said first control information also comprises the information that is defined in the non-data-field length of first at least one variable-length in described first at least one Frame, and wherein said second control information also comprises the information of indication second non-data-field length of at least one variable-length in described second at least one Frame.
3. a utilization has the host-host protocol of a variable element at least, the equipment that between first transceiver and second transceiver, communicates, and described equipment comprises:
Be used for sending the device of first control information to second transceiver from first transceiver, described first control information comprises first repeating transmission value, described first repeating transmission value has stipulated not have at described second twoway radio for sending from described first transceiver the Frame of reception, the maximum number of described second re-send request may that twoway radio allowed;
Send the device of second control information to first transceiver from described second transceiver, described second control information comprises a repeating transmission value, this repeating transmission value has stipulated not have at described first transceiver for sending from described second transceiver the Frame of reception, the maximum number of the re-send request may that described first transceiver allowed;
Be used for storing the device of first control information and being used for device in second control information of first transceiver storage at second transceiver; And
Send the device of first group of a plurality of Frame to second transceiver from first transceiver;
Receive the device of at least one receiving data frames of described first group of a plurality of Frame at described second transceiver;
At least one that detects described first group of a plurality of Frame at described second transceiver be the device of receiving data frames not;
Described at least one receiving data frames not for described first group of a plurality of Frame determines whether to send the device less than the re-send request may of described first repeating transmission value;
And, respond the sure decision in described definite device, send the device of first re-send request may to described first transceiver from described second transceiver.
4. the method for claim 3, wherein said information also comprises the re-send request may value, the maximum times of the repeating transmission of the not receiving data frames of described at least one Frame of request repeat that regulation is sent to described second transceiver from described first transceiver, and wherein said treatment step also comprises at least one step of receiving data frames not of determining described at least one Frame, determine for described at least one receiving data frames not, whether be issued described re-send request may value less than re-send request may, if and be issued described re-send request may value less than re-send request may, initiate the repeating transmission of re-send request may from described transceiver to described second transceiver.
5. mobile radio station that runs on telecommunication system with base station, wherein data are sent from the base station in transmission frame, and described mobile radio station comprises:
A receiver that is used to receive from the message of base station, comprise the transmission frame of losing for from the transmission frame sequence in this message, the indication information of the maximum number of the re-send request may that will send from described mobile radio station, described receiver also is used for receiving the described sequence of transmission frame after receiving described message;
A memory device; And
A controller that is coupled with described receiver and memory device, this controller is used for receiving the information from described receiver, preserves this information in memory device, and according to described information, handles and initiate re-send request may.
6. the mobile radio station of claim 5, wherein the described transmission frame of losing from the transmission frame sequence comprises the erroneous transmissions frame that is received.
7. the mobile radio station of claim 5, wherein said transmission frame sequence comprises first sequence of transmission frame, described message comprises first message, and wherein data send to described base station from described mobile radio station in second sequence of transmission frame, and wherein said mobile radio station also comprises the transmitter that is used to send second sequence of transmission frame, and wherein said controller also produces second message, described second message comprises the transmission frame of losing for from the transmission frame sequence, the indication information of the maximum number of the re-send request may of sending from described base station, and the transmission of before second sequence of the described transmission frame of transmission, initiating described second message from described transmitter to described base station.
8. the method for the data that receive from telecommunication system, by mobile radio station of a processing with base station, wherein data are sent from the base station in transmission frame, and described method comprises:
Reception is from the message of base station, and described message comprises the transmission frame of losing for from the transmission frame sequence, the indication information of the re-send request may maximum number that is issued from described mobile radio station;
After receiving described message, receive the described sequence of transmission frame;
The described information of storage in described memory device; And
According to described information, handle and initiate re-send request may.
9. the method for claim 8, wherein the described transmission frame of losing from the transmission frame sequence comprises the erroneous transmissions frame that is received.
10. the method for claim 8, wherein the described sequence of transmission frame comprises first sequence of transmission frame, described message comprises first message, and wherein said method also comprises:
In second sequence of transmission frame, send data to described base station from described mobile radio station;
Generate second message, described second message comprises the transmission frame of losing for from the transmission frame sequence, sends the maximum number of re-send request may from described mobile radio station; And
Before second sequence that sends transmission frame, initiate the transmission of described second message from described mobile radio station to described base station.
11. a base station that runs on the telecommunication system with mobile radio station, wherein data are sent from mobile radio station in transmission frame, and described base station comprises:
A receiver that is used to receive from the message of mobile radio station, comprise the transmission frame of losing for from the transmission frame sequence in this message, will be from the indication information of the maximum number of the re-send request may of described base station transmits, described receiver also is used for receiving the described sequence of transmission frame after receiving described message;
A memory device; And
A controller that is coupled with described receiver and memory device, this controller is used for receiving the information from described receiver, preserves this information in memory device, and according to described information, handles and initiate re-send request may.
12. the base station of claim 11, wherein the described transmission frame of losing from the transmission frame sequence comprises the erroneous transmissions frame that is received.
13. the base station of claim 11, wherein said transmission frame sequence comprises first sequence of transmission frame, described message comprises first message, and wherein data are issued to described mobile radio station from described base station in second sequence of transmission frame, and wherein said base station also comprises the transmitter of second sequence that is used to send transmission frame, and wherein said controller also produces second message, described second message comprises the transmission frame of losing for from the transmission frame sequence, the indication information of the maximum number of the re-send request may of sending from described mobile radio station, and the transmission of before sending second sequence of described transmission frame, initiating described second message from described transmitter to described mobile radio station.
14. the method for the data that a processing is received by the base station, described base station is operated in the telecommunication system with mobile radio station, and wherein data are sent from mobile radio station in transmission frame, and described method comprises:
Reception is from the message of mobile radio station, and described message comprises the transmission frame of losing for from the transmission frame sequence, the indication information of the re-send request may maximum number that is issued from described base station;
After receiving described message, receive the described sequence of transmission frame;
Store described information; And
According to described information, handle and initiate re-send request may.
15. the method for claim 14, wherein the described transmission frame of losing from the transmission frame sequence comprises the erroneous transmissions frame that is received.
16. the method for claim 14, wherein the described sequence of transmission frame comprises first sequence of transmission frame, and described message comprises first message, and wherein said method also comprises:
In second sequence of transmission frame, send data from described base station to described mobile radio station;
Generate second message, described second message comprises the transmission frame of losing for from the transmission frame sequence, sends the indication information of the maximum number of re-send request may from described mobile radio station; And
Before second sequence that sends transmission frame, initiate the transmission of described second message from described base station to described mobile radio station.
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1997
- 1997-05-05 US US08/851,010 patent/US6088342A/en not_active Expired - Lifetime
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1998
- 1998-04-28 JP JP11916098A patent/JP4112680B2/en not_active Expired - Lifetime
- 1998-05-01 DE DE69840249T patent/DE69840249D1/en not_active Expired - Lifetime
- 1998-05-01 EP EP04102545A patent/EP1458152A3/en not_active Withdrawn
- 1998-05-01 EP EP98303429A patent/EP0877513B1/en not_active Expired - Lifetime
- 1998-05-04 BR BRPI9801568-0A patent/BRPI9801568B1/en active IP Right Grant
- 1998-05-04 CN CNB2004100039811A patent/CN100347972C/en not_active Expired - Lifetime
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- 1998-05-04 KR KR1019980015986A patent/KR100594543B1/en not_active IP Right Cessation
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| CN1153479C (en) | 2004-06-09 |
| BR9801568A (en) | 1999-06-29 |
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| EP1458152A3 (en) | 2005-07-13 |
| EP0877513A1 (en) | 1998-11-11 |
| JPH10341488A (en) | 1998-12-22 |
| EP0877513B1 (en) | 2008-11-26 |
| KR19980086756A (en) | 1998-12-05 |
| DE69840249D1 (en) | 2009-01-08 |
| JP4112680B2 (en) | 2008-07-02 |
| EP1458152A2 (en) | 2004-09-15 |
| US7046642B1 (en) | 2006-05-16 |
| US6088342A (en) | 2000-07-11 |
| BRPI9801568B1 (en) | 2015-07-21 |
| CN100347972C (en) | 2007-11-07 |
| HK1069689A1 (en) | 2005-05-27 |
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